See Sentence Structures on page 82 and Grammar on page 83.
Study!
yesterday
kinoo
today
kyoo
tomorrow
ashita
morning
asa
daytime
(o)hiru
evening, night
ban
night
yoru
late afternoon, early evening
yuugata
breakfast
asagohan
lunch
(o)hirugohan
dinner
bangohan
(not) anything, nothing
nani mo + negative